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psxcounters: avoid excessive recalculations
author
notaz
<notasas@gmail.com>
Mon, 5 Dec 2011 00:38:46 +0000
(
02:38
+0200)
committer
notaz
<notasas@gmail.com>
Mon, 5 Dec 2011 21:31:01 +0000
(23:31 +0200)
libpcsxcore/psxcounters.c
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diff --git
a/libpcsxcore/psxcounters.c
b/libpcsxcore/psxcounters.c
index
2ea7c63
..
cd99842
100644
(file)
--- a/
libpcsxcore/psxcounters.c
+++ b/
libpcsxcore/psxcounters.c
@@
-194,18
+194,12
@@
void psxRcntReset( u32 index )
if( rcnts[index].counterState == CountToTarget )
{
if( rcnts[index].counterState == CountToTarget )
{
+ count = psxRegs.cycle;
+ count -= rcnts[index].cycleStart;
+ if( rcnts[index].rate > 1 )
+ count /= rcnts[index].rate;
if( rcnts[index].mode & RcCountToTarget )
if( rcnts[index].mode & RcCountToTarget )
- {
- count = psxRegs.cycle;
- count -= rcnts[index].cycleStart;
- if (rcnts[index].rate > 1)
- count /= rcnts[index].rate;
count -= rcnts[index].target;
count -= rcnts[index].target;
- }
- else
- {
- count = _psxRcntRcount( index );
- }
_psxRcntWcount( index, count );
_psxRcntWcount( index, count );
@@
-221,8
+215,6
@@
void psxRcntReset( u32 index )
rcnts[index].mode |= RcCountEqTarget;
rcnts[index].mode |= RcCountEqTarget;
- psxRcntSet();
-
if( count < 0xffff ) // special case, overflow too?
return;
}
if( count < 0xffff ) // special case, overflow too?
return;
}
@@
-249,8
+241,6
@@
void psxRcntReset( u32 index )
rcnts[index].mode |= RcOverflow;
}
rcnts[index].mode |= RcOverflow;
}
-
- psxRcntSet();
}
void psxRcntUpdate()
}
void psxRcntUpdate()
@@
-338,9
+328,10
@@
void psxRcntUpdate()
base_cycle += hsync_steps * 8791293;
rcnts[3].cycle = base_cycle >> 12;
base_cycle &= 0xfff;
base_cycle += hsync_steps * 8791293;
rcnts[3].cycle = base_cycle >> 12;
base_cycle &= 0xfff;
- psxRcntSet();
}
}
+ psxRcntSet();
+
#ifndef NDEBUG
DebugVSync();
#endif
#ifndef NDEBUG
DebugVSync();
#endif